[PATCH 2/3] powerpc/xmon: drop the nobt option from xmon plus minor fixes

Michael Ellerman mpe at ellerman.id.au
Tue Feb 21 16:33:52 AEDT 2017

Michael Ellerman <mpe at ellerman.id.au> writes:
> "Guilherme G. Piccoli" <gpiccoli at linux.vnet.ibm.com> writes:
> Imagine you're debugging a machine and you drop into xmon to check
> something, then drop out again.
> Then you go away and leave the box, and it crashes into xmon, but xmon
> doesn't print a backtrace because you've already been in xmon. Usually
> you can just get on the console and hit 't', but sometimes the machine
> crashes so hard that xmon doesn't take input - in which case you now
> have no backtrace. :sadface:

OK I read your patch wrong, the above won't happen.

But I still don't think we need any of the auto back trace suppression.


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